/*
 * Copyright (C) 2010 Imavis Srl
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.imavis.video.parse.mjpeg;

import com.imavis.video.parse.VideoInfo;
import com.imavis.video.parse.VideoParser;
import com.imavis.video.parse.mjpeg.impl.JpegMarker;
import java.awt.Dimension;
import java.nio.ByteBuffer;

/**
 *
 * @author Aldo Brucale
 */
public class MJpegParser extends VideoParser {
    @Override
    protected VideoInfo doParse(final ByteBuffer bb) {
        final VideoInfo ret = new VideoInfo();
        ret.setKeyFrame(true);

        if (JpegMarker.SOF0.seek(bb)) {
            final int length = bb.getShort();
            final int depth = bb.get();
            final int height = bb.getShort();
            final int width = bb.getShort();
            ret.setResolution(new Dimension(width, height));
        }

        return ret;
    }
}
